Hydroponic gardening tray



FIG. 1 is a front, top perspective view of a hydroponic gardening tray showing our new design;

FIG. 2 is a rear, bottom perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is an end elevational view thereof. 

The ornamental design for a hydroponic gardening tray, as shown. 